package ch06.ex61.ex64;

public class Example6_4 {
    public static void main(String[] args) {
        CompurerAverage computer;
        double a=11.23,b=22.78;
        computer=new A();
        double result=computer.average(a,b);
        System.out.printf("%5.2f和%5.2f的算术平均值：%5.2f\n",a,b,result);
        computer=new B();
        result=computer.average(a,b);
        System.out.printf("%5.2f和%5.2f的几何平均值：%5.2f\n",a,b,result);
    }
}
